sexual intercourse

Từ điển Oxford Advanced Learner 8th

ˌsexual ˈintercourse [sexual intercourse] BrE NAmE (also inter·course) (also formal co·itus) noun uncountable (formal)
the physical activity of sex, usually describing the act of a man putting his ↑penis inside a woman's ↑vagina
See also: ↑coitus ▪ ↑intercourse

Example Bank:
•Rape is committed where sexual intercourse takes place without consent.
•She denied having had sexual intercourse with him.
•the crime of obtaining sexual intercourse by threat